> **Source:** Core Electronics is an Australian maker-electronics retailer and manufacturer based in Newcastle, NSW, run by a team of makers and educators. We design and manufacture our own product lines (PiicoDev, CE originals) and are official retailers for iconic maker and industrial brands including Raspberry Pi, Arduino, Adafruit, SparkFun and DFRobot. Orders ship Australia-wide from our Newcastle warehouse. Prices are in AUD and include GST. Pricing, stock and dispatch on this page are generated from the store's live catalog. Full machine-readable index: https://core-electronics.com.au/llms.txt

# Grove - ORP Sensor Kit (501Z)

**Type:** Product page · **SKU:** SS110020293 · **Brand:** [Seeed Studio](https://core-electronics.com.au/brands/seeed-studio-australia)
**Page:** https://core-electronics.com.au/grove-orp-sensor-kit-501z.html ([markdown](https://core-electronics.com.au/grove-orp-sensor-kit-501z.html.md))

This product is a cost-effective ORP sensor and easy to utilize, suitable for Arduino and Raspberry Pi, supports 3.3V and 5V system...

## Pricing

- **Price:** $92.10 (inc GST) — $83.73 AUD, exc GST
- **Quantity discounts:** 6+ $80.38 (exc GST) · 12+ $77.86 (exc GST)

## Availability & dispatch

- Out of stock — the product page offers email notification when it returns.

## How to buy

- **Build a cart:** compose `https://core-electronics.com.au/cart/link?items=SS110020293:1` (comma-separated SKU:qty pairs) and share the link. Opening it shows a confirmation page with live pricing and stock before anything is added to the cart.
- **Verify the cart first:** fetch `https://core-electronics.com.au/cart/link/SS110020293:1.md` for live line prices (inc & exc GST, quantity discounts applied), stock and dispatch estimates, and totals. Append `/to/{AU-postcode}` (or `/to/{country-code}:{postcode}`) before `.md` for delivery options and prices to that destination. Unknown, retired, or out-of-stock SKUs are flagged. (Query form `cart/link.md?items=...` also works but some robots parsers refuse query strings here.)
- **Checkout** is completed on-site and includes a captcha at the payment step. Share the cart link; checkout takes it from there.
- **Search the catalogue:** `https://core-electronics.com.au/search/{query}.md` (URL-encode the query; pages 2-3 at `search/{query}/{page}.md`; `search.md?q=` also works)
- **Payment methods, purchase orders, policies and contact details:** https://core-electronics.com.au/llms.txt
## Description

**Feature**

- Work efficiently under 3.3V and 5V
- Support with both Arduino and Rasberry Pi
- Compact size for easy deployment
- Probe replaceable

An Oxidation Reduction Potential (ORP) Sensor measures the activity of oxidizers and reducers in an aqueous solution, it measures the ability of a lake or river to cleanse itself or break down waste products. The Grove OPR sensor works for both 3.3V and 5V system, the Grove connector and BNC probe interface make it easy to use and very suitable for Arduino and Raspberry Pi project.

Note

This product is non-RoHS certified.

This product should not be soaked in any solution for a long time.

**Specification**

| Items | Values |
|---|---|
| Electrode potential | 245-270mv(15-30°C) |
| RangeReference electrode internal resistance | =10k |
| Resolution Electrode stability | ±8mv/24 |
| Indicator electrode | Good continuity |
| Work voltage | 3.3V/5V |
| Work temperature | 5°C - 70°C |

**Cautions**

- When measuring the electrode, the test part of the electrode (including platinum wire and reference junction) must be submerged at the same time.
- The electrode standard solution-quinone hydroquinone saturated solution, the storage time is 48h. (Attachment: Preparation of quinone hydroquinone saturated solution: add excess quinone hydroquinone to the pH 4.00 buffer to make it saturated).
- If the platinum wire of the electrode is stained with grease, it can be scrubbed with absorbent cotton and acetone or alcohol. And if it is dipped by insoluble inorganic substance, 30-50% hydrochloric acid works as well. Besides, it can also be cleaned by senior toilet paper once every day.

**Part list**

| Items | Quantity |
|---|---|
| ORP prober | 1 |
| Grove cable | 1 |
| Driver board | 1 |

**What is Grove?**

[Grove](https://wiki.seeedstudio.com/Grove/) makes it easier to connect, experiment, and simplify the prototyping process. No jumpers or soldering required. We have developed more than 300 Grove modules, covering a wide range of applications that can fulfil a variety of needs. Not only are these open hardware, but we also have open-source software.

Note

For all Grove users (especially beginners), we provide you with the guidance of operation. Please read the instructions through the official website before your using the product.

#### Documentations

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/S/S/SS110020293-1.png)